Koch, P.L.; Behrensmeyer, A. K.; Fogel, M.L. 1991. The isotopic ecology of plants and animals in Amboseli National Park, Kenya. Annual Report of the Director of the Geophysical Laboratory 1991: 163-171. { copied = true; setTimeout(() => copied = false, 10000); }).catch(err => { console.error('Failed to copy:', err); }); " type="button" :class="copied ? 'bg-secondary border-secondary' : 'border-primary hover:bg-primary'" class="group min-w-64 flex items-center justify-between gap-5 border border-solid px-5 py-2 cursor-pointer transition-colors"> PDF download available